Fairwaves UmTRX - presentation at SDR'11 conference

Alexander Chemeris, CEO

smart radio software

UmTRX –an open-source hardware for

GSM base station

Alexander Chemeris, CEO twitter: @chemeris e-mail: [email protected]

Presentation plan

1. What is UmTRX?

2. Non-technical details

3. Technical background


UmTRX

A transceiver for• low-cost,• mid-range,• power-efficientGSM base station


Presentation plan

1. What is UmTRX?

2. Non-technical background

3. Technical details


Project stage & plans

• 1st prototype by New Year

• Test deployment by 2012 Q3 at Mayotte


Open-Source Hardware

• Editable design files are published

• You're allowed to

o distribute,

o modify,

o manufacture.


Purpose and users

• Small/tiny carriers

• Developing regions

• Rural and isolated areas

… not to compete with Big Guys


Presentation plan

1. What is UmTRX?

2. Non-technical background

3. Technical details


UmTRX architecture

1GigE

FPGAXilinx Spartan 6 LX75

Power GPSEB230

1 PPS

Rx

Tx

Rx

Tx

controlcontrol

Ref. Clock

TCXO26 MHz

duplexer +LNA+PA

duplexer +LNA+PA

Flash

LMS6002D

LMS6002D

SP

I

UA

RT

switch

switch

GPIO

GPIO

SRAM


UmTRX specification

• Dual TRX

• GPS-locked clock

• 5.25" form-factor

• 3mW output power

• Ethernet connection

15 voice channelscheap Power Amplifiersdiversity receive

no maintenanceno costly OCXO

many enclosuresfits into CD-ROM slot

standard for BTSamplifies to any value

standardreliable


LMS6002D

› Single chip transceiver› 375MHz-4GHz.› Programmable bandwidth:

1.5-28MHz› 12-bit ADC and DAC› Tx RF output +6dBm,

continuous wave

and NDA :)


Modified UHD firmware & software

1. Works with OpenBTS

2. Works with OpenBSC

3. Even with GnuRadio

smart radio softwareAlexander Chemeris

[email protected]+7 (915) 330-7626

skype: Alexander.Chemeristwitter: @chemeris


Mayotte project

Coordinates12 50 S, 45 10 E

Kilometers of coastline185.2 kilometers

Square kilometers of land374 square kilometers

Square kilometers of water0 square kilometers

Population178,437 (July 2003 est.)

Target

low-cost GSM network

affordable communications

uses open-technology

hack & learn


About Fairwaves LLC

• Moscow based company, founded in Jan 2011.• Focuses on development of cost-effective mobile access solutions.• Provides software and hardware development services in the area of SDR.• Owns world-leading IP in LDPC error-correcting codes, smart antenna systems

and wavelet filtering of RF signals.• Alexander Chemeris, CEO, holds Master degree in Computer Science and during

last 6 years was involved in various projects on VoIP, video-conferencing and wireless technologies as senior engineer, project manager and consultant, including many open-source projects.

• Prof. Dr. Sergey Portnoy, Chairman of the Board, received doctoral degree in 1992 for his achievements in cascaded modulation and coding schemes, nowadays known as OFDM. For the last 20 years he has been building wireless networks and promoting wireless access in Russia. At this moment he holds positions of WiMAX Forum Regional Director, Chairman of the board of ZAO Cedicom (equipment distribution),VP Strategy of ZAO Antares (emerging LTE operator).

Fairwaves UmTRX - presentation at SDR'11 conference

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